Poets, for instance, are up to thirty times more likely to suffer from bipolar disorder than non-poets. A 2012 study published in Frontiers in Evolutionary Neuroscience found that anxious folk tend to have higher IQs. Another study that year followed 1.2 million patients and their relatives and found that bipolar disorder is more common in individuals with artistic professions including dancers, photographers and authors. Scientists were also found to have the same link.